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your web page. Paranasal Sinuses Anatomy & Postioning Ch 13
Which of the sinuses can be visualized using the open mouth waters method?The Waters view (see the image below) shows the maxillary antra clearly. The frontal sinus is projected obliquely, and the ethmoid air cells are obscured, although a few may be seen along the medial walls of the orbit and within the nose. The sphenoid sinus is seen through the open mouth.
Which sinus is projected through the oral cavity with a Parietoacanthial open mouth projection?Where are the ethmoid sinuses located within the ethmoid bone? Situation: A radiograph of a parietoacanthial transoral (open-mouth Waters) projection reveals that the mouth is open but the sphenoid sinus is superimposed over the maxilla and upper teeth.
Which paranasal sinuses are demonstrated by the Parietoacanthial projection waters method?Which Paranasal Sinuses group is best demonstrated with the Parietoacanthial Projection, Waters Method? Where should the petrous pyramids/ ridges be demonstrated for the Parietoacanthial Projection, Waters Method? Immediately below the maxillary sinuses.
Which sinuses are best demonstrated with a Waters projection?A radiograph of a Waters' projection for sinuses reveals that the alveolar processes of the maxilla are projected over the maxillary sinuses.
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